/*
    Copyright 2008 - 2013 Brightworks, Inc.

    This file is part of Language Mentor.

    Language Mentor is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Language Mentor is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Language Mentor.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.langcollab.languagementor.controller.audio
{
    import com.brightworks.util.Log;

    import flash.events.Event;
    import flash.events.TimerEvent;
    import flash.utils.Timer;

    public class AudioSequenceLeaf_Timer extends AudioSequenceLeaf
    {
        private var _timer:Timer;

        public function AudioSequenceLeaf_Timer()
        {
            super();
        }

        // ****************************************************
        //
        //          Public Methods
        //
        // ****************************************************

        override public function dispose():void
        {
            Log.info("AudioSequenceLeaf_Timer.dispose()");
            duration = 0;
            if (_timer)
            {
                Log.info("AudioSequenceLeaf_Timer.dispose(): Stopping timer");
                _timer.stop();
                _timer.removeEventListener(TimerEvent.TIMER, onElementComplete);
                _timer = null;
            }
            super.dispose();
        }

        override public function startFromBeginning():void
        {
            Log.info("AudioSequenceLeaf_Timer.startFromBeginning()");
            super.startFromBeginning();
            _timer = new Timer(duration, 0);
            _timer.addEventListener(TimerEvent.TIMER, onElementComplete);
            _timer.start();
        }

        override public function stop():void
        {
            Log.info("AudioSequenceLeaf_Timer.stop()");
            super.stop();
            if (_timer)
            {
                Log.info("AudioSequenceLeaf_Timer.stop(): Stopping timer");
                _timer.stop();
                _timer.removeEventListener(TimerEvent.TIMER, onElementComplete);
                _timer = null;
            }
        }

        // ****************************************************
        //
        //          Protected Methods
        //
        // ****************************************************

        override protected function onElementComplete(event:Event):void
        {
            Log.info("AudioSequenceLeaf_Timer.onElementComplete()");
            if (_timer)
            {
                Log.info("AudioSequenceLeaf_Timer.onElementComplete(): Stopping timer");
                _timer.stop();
                _timer.removeEventListener(TimerEvent.TIMER, onElementComplete);
                _timer = null;
            }
            super.onElementComplete(event);
        }
    }
}
